(function(a) {
	a.fn.hoverClass = function(b) {
		this.live("mouseenter", function(c){
			$(this).addClass(b)
		});
		this.live("mouseleave", function(c){
			$(this).removeClass(b)
		});
		return a
	};
})(jQuery);

(function($) {
	$.fn.extend({
		resizeImg: function(opt, callback) {
			var defaults = {
					w: 200,
					h: 150
				},
				opts = $.extend(defaults, opt);

			//获取图片实际宽高，此方法摘自网络
			var getImgWh = function(url, callback) {
				var width, height, intervalId, check, div, img = new Image(),
					body = document.body;
				img.src = url;

				//从缓存中读取
				if (img.complete) {
					return callback(img.width, img.height);
				};

				//通过占位提前获取图片头部数据
				if (body) {
					div = document.createElement('div');
					div.style.cssText = 'visibility:hidden;position:absolute;left:0;top:0;width:1px;height:1px;overflow:hidden';
					div.appendChild(img)
					body.appendChild(div);
					width = img.offsetWidth;
					height = img.offsetHeight;
					check = function() {
						if (img.offsetWidth !== width || img.offsetHeight !== height) {
							clearInterval(intervalId);
							callback(img.offsetWidth, img.clientHeight);
							img.onload = null;
							div.innerHTML = '';
							div.parentNode.removeChild(div);
						};
					};
					intervalId = setInterval(check, 150);
				};
				// 加载完毕后方式获取
				img.onload = function() {
					callback(img.width, img.height);
					img.onload = img.onerror = null;
					clearInterval(intervalId);
					body && img.parentNode.removeChild(img);
				};
			};

			this.each(function() {
				var _this = this;
				getImgWh(this.src, function(imgWidth, imgHeight) {
					//计算图片最大宽度						
					if (imgWidth > opts["w"]) {
						_this.width = opts["w"];
						_this.height = imgHeight * (opts["w"] / imgWidth);
						imgWidth = opts["w"];
						imgHeight = _this.height;
					}
					//计算图片最大高度
					if (imgHeight > opts["h"]) {
						_this.height = opts["h"];
						_this.width = imgWidth * (opts["h"] / imgHeight);
						imgHeight = opts["h"];
						imgWidth = _this.width;
					}

					//水平居中，垂直居中
					$(_this).css({
						"margin-top": (opts["h"] - imgHeight) / 2,
						"margin-left": (opts["w"] - imgWidth) / 2
					});

				});

			});
		}
	});
})(jQuery);

$(function() {

	/* 3个模块*/
	$(".modules").hoverClass("btnhover");

	/* 小模块*/
	$(".barbox").hoverClass("barhover");

	/* 顶部菜单*/
	$(".pagemenu").hoverClass("hover");

});

/*顶部固定层*/
$(window).scroll(function() {
	var moveLen = $(window).scrollTop();
	moveLen = parseInt(moveLen);
	if (moveLen == 0) {
		$(".topbar").css("position", "static");
	} else {
		$(".topbar").css("position", "fixed");
	}
});

/* 选项卡 */
function setContentTab(name, curr, n) {
	for (i = 1; i <= n; i++) {
		var menu = document.getElementById(name + i);
		var cont = document.getElementById("con_" + name + "_" + i);
		menu.className = i == curr ? "cur" : "";
		if (i == curr) {
			cont.style.display = "block";
		} else {
			cont.style.display = "none";
		}
	}
}

/* 弹出层调用 */
$(document).ready(function() {
	App.init();
});